Lists of animal facts are no doubt appealing to young readers, but the Do You Know? series ups the ante by pairing each fact with an over-the-top illustration featuring anthropomorphized creatures in jokey, comic book style panels. In Do You Know Praying Mantises?, the authors give a lot of attention to praying mantises' well-known cannibalistic mating habits, and there are plenty of amusing panels featuring the headless insects. Since many of the animals featured are predators, a lot of the illustrations depict creatures' somewhat grisly eating (or being eaten), and while they're only cartoonishly gory, they might be upsetting to more sensitive readers. A lack of source notes or further reading suggestions is a drawback. That said, there's certainly an audience for the gruesome realities of predatory animals, and this vehicle fits the bill, particularly for reluctant readers.